Public water system · TX1450009
ActiveCity of Marquez
At a glance
City of Marquez (PWSID TX1450009) is an active community water system in Leon County, Texas. It reports serving 290 people through 191 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
290
Service connections
191
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Marquez compare with other water systems in Leon County?
By EPA's size categories, City of Marquez is a very small system (500 people or fewer). Leon County has 18 active public water systems. Its population served is well below the county average of 1,321 people per system, and accounts for 1.2% of the 23,786 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Marquez is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Texas has 4,594 active community water systems, 65% of the state's 7,078 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 5,215 Texas systems (74%) list groundwater as their primary source.
Who owns and regulates City of Marquez?
EPA lists City of Marquez as owned by a local government. The TX state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 11 of the 18 active systems in Leon County (61%) are also owned by a local government.
Does City of Marquez have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2013. The violations listed here began between January 2005 and December 2013. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Chlorine (9 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2013-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2011-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2006-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2006-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2006-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2005-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2005-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2005-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
City of Marquez: frequently asked questions
Who runs City of Marquez?
City of Marquez (PWSID TX1450009) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does City of Marquez serve?
City of Marquez reports serving 290 people through 191 service connections in Leon County, Texas.
Where does City of Marquez get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does City of Marquez have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2013. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is City of Marquez's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find City of Marquez's water quality report?
As a community water system, City of Marquez must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Leon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Concord Robbins WSC | Leon | 10,035 | Community | Groundwater |
| Flo Community WSC | Leon | 5,256 | Community | Groundwater |
| City of Buffalo | Leon | 1,767 | Community | Groundwater |
| Hilltop Lakes WSC | Leon | 1,257 | Community | Groundwater |
| City of Centerville | Leon | 903 | Community | Groundwater |
| Yellow Rose Travel Plaza | Leon | 850 | Transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “City of Marquez, PWSID TX1450009, Texas”, https://aquacensus.com/water-systems/texas/city-of-marquez-tx1450009 (data as of October 1, 2026).